knapping debris (Material Keyword)

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The U.S. Air Force Center for Engineering and the Environment retained URS Corporation (URS) to conduct a preliminary assessment and site inspection (PA/SI) of the Debris Area, subsequently designated Munitions Response Area (MRA) XU403, located at the former Williams Air Force Base (AFB) in Mesa, Arizona. The PA/SI was undertaken to determine whether there are munitions and explosives of concern (MEC) or any releases (contaminants), as defined by the Comprehensive Environmental Response,...